This is the Inner Bamboo B-II bass preamp. It's a high-end preamp that, when combined with our U-II compressor, is used by professional musicians. This is a super-class preamp that delivers sufficient sound pressure even when inserted into the return of a bass amplifier! Purchased in July 2023, it was mainly used for recording in a soundproof room at home, so there are some minor scratches, but I think it's in very good condition. Shipping may be delayed by 2-3 days due to work, so thank you for your understanding.